Yes this was a point of particular emphasis in swiftwater rescue classes since drowning is one of the mechanisms of injury for which CPR can work well to bring

Yes this was a point of particular emphasis in swiftwater rescue classes since drowning is one of the mechanisms of injury for which CPR can work well to bring someone back who appears dead (not breathing, hard-to-find pulse). It’s also a scenario in which the breathing part of CPR is particularly valuable. A lot of front-country CPR courses de-emphasize administering breaths in favor of sustaining chest compressions.